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How can I convert a Unix timestamp to DateTime and vice versa?
...Seconds( unixTimeStamp ).ToLocalTime();
return dtDateTime;
}
Or, for Java (which is different because the timestamp is in milliseconds, not seconds):
public static DateTime JavaTimeStampToDateTime( double javaTimeStamp )
{
// Java timestamp is milliseconds past epoch
System.DateTime d...
Send an Array with an HTTP Get
...ally, when the target server uses a strong typed programming language like Java (Servlet), then you can just send them as multiple parameters with the same name. The API usually offers a dedicated method to obtain multiple parameter values as an array.
foo=value1&foo=value2&foo=value3
S...
How to loop through a HashMap in JSP?
...
Just the same way as you would do in normal Java code.
for (Map.Entry<String, String> entry : countries.entrySet()) {
String key = entry.getKey();
String value = entry.getValue();
// ...
}
However, scriptlets (raw Java code in JSP files, those <%...
How do I add a Maven dependency in Eclipse?
...ith the latest version of Eclipse and m2e you can right click on a regular Java project and enable Dependency Management for it. This will generate a pom.xml for the project, while leaving its structure intact.
– Perception
Feb 8 '12 at 5:40
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Best way to handle list.index(might-not-exist) in python?
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This issue is one of language philosophy. In Java for example there has always been a tradition that exceptions should really only be used in "exceptional circumstances" that is when errors have happened, rather than for flow control. In the beginning this was for perfo...
com.jcraft.jsch.JSchException: UnknownHostKey
I'm trying to use Jsch to establish an SSH connection in Java. My code produces the following exception:
12 Answers
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Finding the Eclipse Version Number
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eclipse.buildId=4.4.1.M20140925-0400
Again easier to find, as those are Java properties set and found with System.getProperty("eclipse.buildId").
Original answer (April 2009)
For Eclipse Helios 3.6, you can deduce the Eclipse Platform version directly from the About screen:
It is a combinatio...
Sending files using POST with HttpURLConnection
...ith some parameter using MultipartUtility in simple way.
MultipartUtility.java
public class MultipartUtility {
private final String boundary;
private static final String LINE_FEED = "\r\n";
private HttpURLConnection httpConn;
private String charset;
private OutputStream output...
@Basic(optional = false) vs @Column(nullable = false) in JPA
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@Xie Jilei: From book: Java persistence with hibernate 2007, p. 179: @Basic(optional = false) @Column(nullable = false) The @Basic annotation marks the property as not optional on the Java object level. The second setting, nullable = false on the...
Difference between abstract class and interface in Python
...se Python doesn't have (and doesn't need) a formal Interface contract, the Java-style distinction between abstraction and interface doesn't exist. If someone goes through the effort to define a formal interface, it will also be an abstract class. The only differences would be in the stated intent ...